Method and apparatus for the thickening of fiber suspensions

Details Method and apparatus for the thickening of fiber suspensions Method and apparatus for the thickening of fiber suspensions

D - Textiles, Paper

21

C

D21C 9/18 (2006.01) D21F 1/66 (2006.01)

Patent

CA 2344940

The present invention relates to the thickening of pulp suspensions. A low consistency pulp suspension is fed to a pre-thickener (10) through an inlet conduit (18). A layer of thickened pulp, formed on a filter surface (22), is pushed along the filter surface by a cleaning member to the discharge end of the pre-thickener and is discharged through the outlet (20). The cleaning member comprises a rotating shaft (30), on which shaft at least one screw thread (32) is fixed so as to leave a free space between the shaft and the screw thread. Essentially non-thickened pulp is allowed to flow through the apparatus via this space.

Cette invention se rapporte à l'épaississement de suspensions de pâte. A cet effet, une suspension de pâte de faible consistance est introduite dans un préépaississeur (10) par un conduit d'admission (18). Une couche de pâte épaissie, formée sur une surface de filtre (22), est poussée le long de cette surface de filtre par un élément nettoyant jusqu'à l'extrémité de décharge du préépaississeur et elle est alors déchargée par le conduit de sortie (20). L'élément nettoyant comprend un arbre rotatif (30), sur lequel est ménagé un filet de vis (32) tel qu'un espace libre est créé entre l'arbre et le filet de vis. La partie essentiellement non épaissie de la pâte peut ainsi s'écouler dans l'appareil par cet espace laissé libre.

Affiliated with

Also associated with

Rating

Method and apparatus for the thickening of fiber suspensions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for the thickening of fiber suspensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for the thickening of fiber suspensions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1575842